Fire-alarm apparatus.



No. 790,822. PATEN-TED MAY 23, 1905.

' H, T. GALE a; R. w. DAVENPORT.

FIRE ALARM APPARATUS.

APPLICATION FILED MAY 7, 1904:. I

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I uvowkozs Z OHSOMDOUQHPOIXI Harp 0/6 mmm 1 s y 0 I PATENTED MAY 23,1905. H. T. GALE 8: R. W. DAVENPORT.

FIRE ALARM APPARATUS.

APPLICATION FILED MAY 7. 1904.

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E. T. GALE 8; R. W. DAVENPORT. FIRE ALARM APPARATUS.

APRLIOATION FILED MAY 7, 1.904.

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-- PATENTED MAY 23, 1905.

H. T. GALE & R. W. DAVENPORT.

FIRE ALARM APPARATUS.

APPLICATION mum MAY '1, 1904.

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Harri '1. 0 a 16 No. 790,822. PATENTED MAY 28, 1905. H. T. GALE &: R. W.DAVENPORT.

\ FIRE ALARM APPARATUS.

APPLICATION FILED MAY 7, 1904.

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I I I atto'cwm I No. 790,822. PATENTED MAY 23, 1905.

H. T. GALE & R. W. DAVENPORT.

FIRE ALARM APPARATUS. APPLICATION 2mm MAY '1. 1904.

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( hwemfow Ransom W.Dauefi/70r). Qvitmzoow H y UNITED STATES Patented May23, 1905.

PATENT OEETCE.

HARRY T. GALE AND RANSOM W. DAVENPORT, OF BUFFALO, NEW YORK.

FIRE-ALARM APPARATUS.

SPECIFICATION forming part of Letters Patent No. 790,822, dated May 23,1905. Application filed May 7, 1904. Serial No. 206,918.

Another object is to so arrange the fire-' alarm box within a booth thatthe circuit in which said box is included will not be com-.

pleted unless the door of the booth is closed and locked.

Another object is to provide an alarm which will be continuously soundedduring the occupancy ofthe booth.

Another object is to provide a combined lock and circuit-closer which isof novel construction and which is adapted to close the circuit onlywhen the door of the booth is locked thereby and which is adapted to beunlocked from the outside of the booth only.

With the above and other objects in view the invention consists of abooth having any desired form of fire-alarm box arranged therein at apoint removed from the door of the booth. This alarm-box is includedWithin a line-circuit in which are arranged two circuitclosers, one ofwhich includes the lock of the door, while the other includes a segmentwhich is movable with the door and is adapted to close the circuit whenthe door is entirely closed.

The invention also consists of an alarm which is arranged within thebooth and which is adapted to be sounded continuously during theoccupancy of the booth.

The invention also consists of a lock which will automatically securethe door when the same is closed and which subsequent to such operationcloses the circuit through the linewire in which the fire-alarm isincluded. This lock can only be opened from the outside of the booth,and a particular form of key must be provided forthat purpose.

The invention also consists in the further novel construction andcombination of parts hereinafter more fully described and claimed, andillustrated in the accompanying drawings, showing the preferred form ofour invention, and in which- Figure 1 is a front elevation of a boothcontaining our improved apparatus, the door of the booth being open andportions thereof and of the booth being removed. Fig. 2 is a horizontalsection through the booth and showing the'door thereof closed. Fig. 3 isan enlarged horizontal section through one of the circuit-closers of thedoor. Fig. t is a section on line 4 4:, Fig. 3. Fig. 5 is a diagram--matical View showing the circuits included within the apparatus. Fig. 6is a vertical section through the lock used in connection with thebooth. Fig. 7 is a section on line 7 7, Fig. 6, the tube within the lockbeing shown in section. Fig. 8 is a section on line 8 8, Fig. 6, thetube being shown in section and the key removed. Fig. 9 isa frontelevation of the lock. Fig. 10 is a rear elevation of the lock. Fig. 11is a section on line 11 11, Fig. 6; and Fig. 12 is an enlarged sectionthrough the terminal plug of the lock.

Referring to the figures by numerals of reference, 1 is a booth of anysuitable contour and constructed of strong materials, and'the floor ofthis booth has an upper depressible section 2, which is supported bysprings 3 or in any other suitable manner and when depressed is adaptedto contact and form an electrical connection with a bottom plate 4. Anelectric bell 5 is arranged within the booth and is included in acircuit with one or more batteries 6 and with the depressible section 2and the base-plate 4. It will thus be seen that when section 2 isdepressed the circuit from the batteries to the bell is closed and thebell will be sounded continuously as long as a person is within thebooth. A fire-alarm box 7 and apparatus of any preferredconstruction isarranged within the booth, and the wires extending therefrom are locatedwithin conduits or tubes, which serve to protect them from injury. Wehave shown these tubes at 8 in Fig. 2 and by dotted lines in Fig. 1. Oneof the wires, 9, extending from the box is grounded, while the otherwire, 10, extends to the lock of the booth-door 11.

This wire is also connected to normally open contacts which are arrangedadjacent the hinge of the door and which are adapted to be electricallyconnected only when the door is closed. This wire 10 constitutes theline-wire which is utilized in fire-alarm apparatus. A casting 12 issecured to the inner face of the booth 1 adjacent one of the hinges ofthe door 11, and this casting has a curved tube 13, formed integraltherewith and extending through the booth. This tube is concentric withthe doorhinge 14, and therefore permits a curved arm 15, which issecured to the door 11, to slide freely therein, because this arm isalso concentric with the hinge 14. N otches 16 are formed in the inneredge of the arm 15 and are adapted to be engaged by a spring-pressedcatch 17 which is slidably mounted in cars 18, arranged within thecasting 12. A laterally-extending arm 19 is located at the inner end ofcatch 17 and forms the armature of a magnet 20, which is arranged in thecasting 12. This magnet is included in the circuit with the alarm-bell5, the batteries 6, and the floor of the booth. The wire is arrangedwithin a conduit 22, which projects downward from the casting 12 andserves to protect the wires against injury by the person within thebooth. Insulated spring-contacts 23 and 24 are arranged within thecasting 12 and are electrically connected to the wire 10 before referredto. These contacts are normally removed from each other and are onlyelectrically connected when the arm 15 has reached the limit of itsinward movement within the tube 13. When the arm is in this position, aprojection 25, of insulating material, which is arranged upon the inneredge of the arm 15, moves against the contact 23 and presses it inwardupon contact 24.

The door 11 has an arm 26 thereon, which is adapted when the door isclosed to overlap the adjoining edge of the booth, and this arm has aninwardly-projecting stem 27, provided with an enlarged tapered head 27,which is adapted when the door is closed to project through the wall ofthe booth and into a lockcasing 28, which is secured thereto. Thislock-casing is preferably cylindrical and has an inlet-opening 29 at itsfront end. Secured within the inner end of the casing 28 and inalinement with the opening 29 is a tube 30, in which is arranged a plug31, of insulating material, having contacts 32 on the inner end thereof.These contacts are electrically connected to the wire 10. A slide 33 isarranged within the tube 30 and has a stem 34, on the end of which is ahead 35. A spring 36 incloses the stem and serves to hold the head 35normally removed from contacts 32. I

Parallel rods 37 are located at opposite sides of tube 30 and extendfrom the top to the bottom of the casing 28. Arranged on each of theserods is a revoluble'sleeve 38, and secured to both of these sleeves andmovable with them are parallel arms 39, which extend longitudinallyalong the sides of tube 30 and have inwardly-extending ends 40, whichnormally assume positions between the inlet 29 and the tube 30. Springs41 are secured to opposite sides of casing 28 and bear upon the arms 39,thereby serving to hold them normally in the position above described.

Arranged within the casing 28 and below and parallel with the tube 30 isa revoluble tube 42, the ends of which are mounted within fixed sleeves43. This tube has an oval collar 44 therearound, and overlapping thiscollar are normally parallel arms 45, which are secured to and areadapted to move with the sleeves 38. Any suitable mechanism (notv shown)may be arranged within the front end of tube 42, so as to permit thesame to be rotated by the insertion thereinto of a properv key 46.

The door 11 of the booth 1 is normally open and is held in this positionby the springpressed catch 17, which engages one of the notches 16. Itis thus impossible to close the door accidentally, for the reason thatin order to do so it would be necessary to slide the arm 15 in thedirection of the arrow in Fig. 3, and, as is obvious, this would beimpossi ble if one of the notches was engaged by the catch 17. It willbe understood that when the door is open both of the circuits of theapparatusto wit, theline-circuit and the local oircuit-are broken. Whena person desires to send in an alarm, he steps into the booth, and hisweight upon the section 2 of the floor causes said section to movedownward and establish an electrical connection with the plate 4. Acircuit is thus formed from the batteries 6 to the bell 5, and said bellis sounded continuously as long as the booth is occupied. The magnet 20is also energized by the current and attracts its armature l9, andtherefore the catch 17 is disengaged from arm 15, and the door 11 canthen be swung into closed position. When the door is closed, theprojection 25 on arm 15 presses the contact 23 inward against contact24, and simultaneously with this action the head 27 of stem 27 movesinto the lockcasing 28 and between the ends 40 of arms 39. This headalso projects into the tube 30 and presses the slide 33 inward, therebybringing the head 35 upon the two contacts 32. All of the parts arelocked in these positions by the arms 39, which spring into engagementwith the head 28 and hold it against removal from the casing. The head35 by bearing upon the contacts 32 completes the circuit through theline-wire 10, and therefore the fire-alarm can be turned in in theordinary manner. As no means are provided for unlocking the door fromthe inside, it will be understood that the person sending in the alarmwill be detained within the booth until the arrival of a personauthorized to open the booth. To open the same, it is merely necessaryto insert a proper key into' the tube 42, which may be provided withsuitable mechanism whereby said tube will be caused to rotate with thekey. Asthe tube has an oval-shaped collar 44 thereon, the same willspread the arms 45 apart as it rotates, and as these arms move with thearms 39 it will be understood that these last-mentioned arms will alsobe moved laterally out of engagment with the head 28, and the door canthen be readily opened. The springs 41 and 36 will return the parts ofthe lock to their normal positions. As soon as the door is moved fromits closed position the circuit through the line wire 10 is broken attwo pointsto wit, at the contacts 23 and 24: within the casting l2 andat the contacts 82 in the lock. As the door is opened it will beautomatically locked by the catch 19 to prevent its being accidentallyclosed. If desired, a police-circuit may also be included in theapparatus, so as to be completed when the door of the booth is closed.

In the foregoing description we have shown the preferred form of ourinvention; but we do not limit ourselves thereto, as we are aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the ad vantages thereof, and we therefore reserve theright to make such changes as fairly fall within the scope of ourinvention.

Having thus described the invention, What is claimed as new is- 1. Thecombination with a booth having a fire-alarm apparatus therein; of adoor hinged to the booth, an arm movable with the door and concentricwith the hinge, contacts included in a circuit with the fire-alarmapparatus, and means upon the arm and inclosed within the booth forelectrically connecting the contacts when the door is closed.

2. The combination with a booth having fire-alarm apparatus therein; ofa door to the booth, an arm connected to the door, means for locking thearm against movement in one direction, contacts included in a circuitwith the fire-alarm apparatus, means upon the arm for electricallyconnecting the contacts, and means for disengaging the catch from thearm.

3. The combination with a booth having a fire-alarm apparatus therein,and a door to the booth; of an arm extending from and movable with thedoor, a spring-pressed catch normally engaging the arm, a magnet, anarmature therefor connected to and movable with the catch, contactsincluded in a circuit with the fire-alarm apparatus, means upon the armfor electrically connecting the contacts, and a circuit-closer includedin a circuit with the magnet and a source of electricity.

4. The combination with a booth havingfire-alarm apparatus, and a doorto the booth;

of an arm extending from and movable with the door, a casing for thearm, a magnet within the casing, a springpressed catch forming thearmature of the magnet and normally engaging the arm, a movablefloor-section within the booth forming one contact in a circuitincluding the magnet and a source of electricity, a second contact insaid circuit and below the floor-section, and contacts included in thecircuit with the fire-alarm apparatus, and means upon the arm forelectrically connecting said last-mentioned contacts when the door isclosed.

5. The combination with a booth having fire-alarm apparatus therein, anda door to the booth; of a casing secured to the booth and having aninlet, a tube alining with the inlet, contacts within the tube andincluded within the circuit with the fire-alarm apparatus, aspring-pressed slide within the tube, a circuit-closing head movabletherewith and adapted to bear upon the contacts, oppositelydisposedspring-pressed locking-arms within the casing, and means upon the doorfor operating the slide and head, said means being adapted to be engagedby the locking-arms.

6. The combination with a booth having fire-alarm apparatus therein, anda door to the booth; of a casing secured to the booth and having aninlet, a tube within the casing and alining with the inlet, insulatedcontacts within the tube. and in circuit with the firealarm apparatus, aspring-pressed slide within the tube, a circuit-closing head movablewith the slide and adapted to bear upon the contacts,oppositely-disposed spring-pressed locking-arms within the casing, astem upon the door adapted to project into the casing, and ahead thereonfor operating the slide and engaging the arms.

7. The combination with a booth having fire-alarm apparatus therein, anda door; of a lock-casing secured to the booth and having an inlet, atube within the casing and alining with the inlet, insulated contactswithin the tube and included within the circuit of the fire-alarmapparatus, a spring-pressed slide within the tube, a circuitclosermovable therewith and adapted to bear upon the contacts, revolublesleeves at opposite sides of the tube, oppositely-disposedspring-pressed locking-arms extending from the sleeves, releasing-armssecured to the sides, a spreading device interposed between said arms,a'stem upon the door, and a head thereon adapted to operate the slideand engage the lockingarms.

In testimony whereof we affix our signatures in presence of twowitnesses.

HARRY T. GALE. RANSOM W. DAVENPORT.

Witnesses:

VVEsLEY B. GATCHELL, RANsoM B. DAVENPORT.

